You can start here:
https://www.mensa.org/public/mensa-iq-challenge
Caltech Scientists Can Predict Intelligence from Brain Scans
The approach is a step toward developing a tool for diagnosing conditions like autism, schizophrenia, and anxietywww.caltech.edu
A distributed brain network predicts general intelligence from resting-state human neuroimaging data - PubMed
Individual people differ in their ability to reason, solve problems, think abstractly, plan and learn. A reliable measure of this general ability, also known as intelligence, can be derived from scores across a diverse set of cognitive tasks. There is great interest in understanding the neural...pubmed.ncbi.nlm.nih.gov
Resting-state functional brain connectivity best predicts the personality dimension of openness to experience - PubMed
Personality neuroscience aims to find associations between brain measures and personality traits. Findings to date have been severely limited by a number of factors, including small sample size and omission of out-of-sample prediction. We capitalized on the recent availability of a large...pubmed.ncbi.nlm.nih.gov
We constantly hear the canard that IQ tests are bias. But we can in fact determine intelligence from brain scans.
I wonder how they define left wing... so many different political issues... and single issue voters. But still I think defining left-wing and right-wing is highly error prone, for most issues the left in the US would be centrist in Western Europe. Does this mean that a European centrist gains a couple of IQ points when stepping in the US, just because they skid to the left in the local spectrum. lolPredicting political beliefs with polygenic scores for cognitive performance and educational attainment
Highlights
Predicting political beliefs with polygenic scores for cognitive performance and educational attainment
- Within-families, intelligence predict left-wing beliefs.
- DNA-based predictors of IQ also predict political beliefs within families.
- Our results imply that being genetically predisposed to be smarter causes left-wing beliefs.
Ya reckon I believe most who score higher in these IQ tests are the opposite of all you have mentioned and can at times just be individuals who are on the autistic spectrum.Intelligent people have good observation skills, are curious, do not overestimate themselves, recognize connections, and have a healthy dose of skepticism, and so on.